Over the past 150 working days, the number of defective parts produced by a machine is given in the following table.
Determine the probability that tomorrow’s output will have
(i) no defective parts.
(ii) at least 2 defective parts.
(iii) not more than 4 defective parts.
| (i) | (ii) | (iii) | |
|---|---|---|---|
| A | 0.1 | 0.806 | 0.686 |
| B | 0.1 | 0.686 | 0.806 |
| C | 0.2 | 0.686 | 0.806 |
| D | 0.2 | 0.806 | 0.686 |